If you look at the way grocery stores were 20 years ago, compared to NOW... there's a lot that's changed. Aisles may be a little wider, grocery carts, a little smaller... security guards, a little sleepier... But i bet you haven't noticed ONE major change.
The term is called: "Psychological Priming"... By adding MORE of one particular product... researchers have found that stores can secretly influence your behavior & encourage you to SPEND MORE money (without you realizing).
In fact, researchers found that if you get people's nose & saliva glands working... they become much less disciplined shoppers. And because of that.... over the last decade... the area for a certain product has DOUBLED IN SIZE. Tell me what it is.